Agapanthus praecox is a variable species with open-faced flowers. It is a perennial plant that can survive up to 75 years. Its evergreen leaves are 2 cm wide and 50 cm long. Its inflorescence is in umbel. The flowers of the agapanthus are blue, purple or white and bloom in the summer. They give capsules filled with fine black seeds (to be kept cool in sand until sowing). Its stem reaches one meter high. Its roots are very powerful and can break concrete.
Invasive in Argentina, Australia, and New Zealand.